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ISS astronauts splash down on Earth after first-ever medical evacuation

Four International Space Station crewmembers splashed down in the Pacific Ocean on Thursday, NASA footage showed, after the first ever medical evacuation in the orbital lab’s history.

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A ‘cosmic clock’ in tiny crystals reveals the rise and fall of Australia’s ancient landscapes

Australia’s iconic red landscapes have been home to Aboriginal culture and recorded in songlines for tens of thousands of years. But further clues to just how ancient this landscape is come from far beyond Earth: cosmic rays that leave telltale fingerprints inside minerals at Earth’s surface.

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What happens when fire ignites in space? ‘A ball of flame’

When fire breaks out in the low-gravity, high-stakes conditions inside spacecraft or space stations, it behaves very differently than back here on Earth.

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After medical issue, SpaceX Crew-11 set to depart space station for overnight splashdown

NASA gave the go for the SpaceX Crew-11 mission to depart the International Space Station on Wednesday headed for an overnight splashdown back on Earth in the Pacific Ocean.

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Type Ia supernova delayed-detonation model supported by SN 2024gy observations

A research team from the Yunnan Observatories of the Chinese Academy of Sciences (CAS), in collaboration with domestic and international partners, has carried out observational studies on SN 2024gy—a high-velocity Type Ia supernova (SN Ia)—using the Lijiang 2.4-meter telescope.

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Astronomers discover 19 new pulsars by analyzing FAST archival data

Astronomers from Nanjing University in China have analyzed the archival data from the Five-hundred-meter Aperture Spherical radio Telescope (FAST), searching for new pulsars. As a result, they detected 19 such objects that were missed by previous studies. The findings were presented January 5 on the pre-print server arXiv.

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Siwarha’s wake gives it away at Betelgeuse

Betelgeuse is the star that everybody can’t wait to see blow up, preferably sooner rather than later. That’s because it’s a red supergiant on the verge of becoming a supernova and there hasn’t been one explode this close in recorded human history. It’s been changing its brightness and showing strange surface behavior, which is why […]

Can philanthropy fast-track a flagship telescope?

New Space is a term now commonly used around the rocketry and satellite industries to indicate a new, speed focused model of development that takes its cue from the Silicon Valley mindset of “move fast and (hopefully don’t) break things.” Given that several of the founders of rocketry and satellite companies have a Silicon Valley […]

The orbiting factories of the future

Imagine a fully automated 3D printer suspended in midair, churning out crucial components for use at home and abroad.

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Enthusiasts used their home computers to search for ET—scientists are homing in on 100 signals they found

For 21 years, between 1999 and 2020, millions of people worldwide loaned UC Berkeley scientists their computers to search for signs of advanced civilizations in our galaxy.

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Hubble nets menagerie of young stellar objects

A disparate collection of young stellar objects bejewels a cosmic panorama in the star-forming region NGC 1333 in this new image from NASA’s Hubble Space Telescope. To the left, an actively forming star called a protostar casts its glow on the surrounding gas and dust, creating a reflection nebula.

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Phages and bacteria accumulate distinctive mutations aboard the International Space Station

In a new study, terrestrial bacteria-infecting viruses were still able to infect their E. coli hosts in near-weightless “microgravity” conditions aboard the International Space Station, but the dynamics of virus-bacteria interactions differed from those observed on Earth. Phil Huss of the University of Wisconsin-Madison and colleagues present the findings in the open-access journal PLOS Biology. […]

Massive impact could be the cause of our lopsided moon

Our nearest neighbor, the moon, is still something of a mystery to us. For decades, scientists have wondered why it appears so lopsided, with dark volcanic plains on the near side (the side we see) and rugged, cratered mountains and a thicker crust on the far side. Now we might be closer to knowing why. […]

A quarter-century in orbit: Science shaping life on Earth and beyond

For more than 25 years, humans have lived and worked continuously aboard the International Space Station, conducting research that is transforming life on Earth and shaping the future of exploration. From growing food and sequencing DNA to studying disease and simulating Mars missions, every experiment aboard the orbiting laboratory expands our understanding of how humans […]

Solar physicists discover long-hidden source of gamma rays unleashed by flares

Solar physicists say they have found a key source of intense gamma rays unleashed when Earth’s nearest star produces its most violent eruptions.

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